Associate, Heller, Ehrman, White & McAuliffe; associate then partner, McCutchen, Doyle, Brown & Enersen; guest lecturer, Shanghai Institute of Foreign Trade; director, Hong Kong summer program, Geneva/Strasbourg program.

Business organizations, legal issues of start up businesses, technology licensing, and china trade and investment law.

Professor Han specializes in international business transactions and technology licensing, especially involving Pacific Rim countries. Member, Executive Committee of the International Law Section of the State Bar, serving also as its secretary from 1994–95, treasurer from 1995–96, and is currently an adviser emerita to the section; chair, China Law Committee of the San Francisco Bar Association.